[1] "Evaluating clusters for Lower Salmon"
[1] "Subset by Biological Year: TRUE"
[1] "Biological Year: 2022"
[1] "Subset by date range: FALSE"
[1] "From table: AnimalID_GPS_Data_AllCollars_2023_05_10"
First step is to evaluate any social organization of collared animals by looking at their GPS locations. Some herds have more obvious population substructure than others. This is a pretty basic analysis but might be helpful for some high-level grouping. However, it may not work really well for animals that show multi-modal type distribution patterns in their location data (i.e. multiple distinct activity centers).
To do this, we’ll read data from the data base, subset to our specified parameters (bio year, date range) and then compute the median location for each animal over the time period of interest.